# Helper Class

- [createCooldown](/lua-scripting-api/api-reference-and-tips/helper-class/createcooldown.md): API -
- [checkCooldown](/lua-scripting-api/api-reference-and-tips/helper-class/checkcooldown.md): API -
- [setCooldown](/lua-scripting-api/api-reference-and-tips/helper-class/setcooldown.md)
- [cooldownTimeLeft](/lua-scripting-api/api-reference-and-tips/helper-class/cooldowntimeleft.md): API -
- [startsWith](/lua-scripting-api/api-reference-and-tips/helper-class/startswith.md): API -
- [replace](/lua-scripting-api/api-reference-and-tips/helper-class/replace.md): API -
- [split](/lua-scripting-api/api-reference-and-tips/helper-class/split.md): API -
- [randomElement](/lua-scripting-api/api-reference-and-tips/helper-class/randomelement.md): API -
- [hasValue](/lua-scripting-api/api-reference-and-tips/helper-class/hasvalue.md): API - useful for checking if an array contains a value
- [matchRegex](/lua-scripting-api/api-reference-and-tips/helper-class/matchregex.md): API - useful for checking if an array contains a value